Control apparatus for recoiling guns.



No. 782,469. PATENTED FEB. 14, 1905.,

O. P. E. SCHNEIDER.

"CONTROL APPARATUS FOR REGOILING GUNS.

APPLICATION FILED AUG.1'7, 190s.

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1] crazy 3 no. reaeea i. HNHTED STATES Patented February 1%, 1905 PATENTif? CHARLES EEosPER EUGENE SCHNEIDER, E LECEEUSOT, FRANCE.

@QNTRQL a nnm'uns Fora Rec-en ine SPECIFIGAEION fOrming part of LettersPatent No. ceases, dated February application filed August 17,1903.Serial No. 169,818.

T0 all w/ta'm' it, may concern. v

Be it known that 1, CHARLES PROSPER EU- GENE SCHNEIDER, ironmaster, ofLe Creusot, Sa6ne--et-Lo1re, in the Republic of France,

have invented ce'rtain new and useful Improvements Relating to ControlApparatus for Recoiling Guns; and 1 do hereby declare the following tobe a full, clear, andexact description of the invention, such as willenable others skilled in the art to which it appertains' to make and usethe same-Z In mountings or carriages for quick-tiring guns provided witha brake and recuperator the velocity of the moving parts in their returnto battery is only moderated toward the end "of the movement (that is tosay, at

the moment the gun is completing its returnto battery) by bufierswhichact for only a small part'of this movement.- As a result considerablestresses arise inthe parts of the mounting, whereby their stability andstrength are unduly taxed. In order to obviate this defect, I utilizeduring the return of the gun to battery a deadening device whichoperates throughout the entire movement and which,

in short, constitutes a hydraulic brake simi The combine the two brakes,and thereby consid- V erably diminish the number of parts in both.

The present invention consists of a particular arrangement of hydraulicbrake with a central controlling and retarding plunger constituting atone and the same time a recoilbrake and a brake for the return tobattery.

The elements of' the recoil-brake serve in this arrangement withoutnecessitating the addition of others for forming the brake for return tobattery, The drawings illustrate the complete brake in which this doublefunc f tion is secured by employingthe hollow pis' Although a brake ofthis kind ton-rod of the recoil-brake as a cylinder and the. controllingand retarding r In with its cap as a piston for the return i he.

ticn' showing Figure 1 .is a longitndinai see the relative position ofthe parts at the beginning of'recoil. Fig. 2 isasimilarsection, butshowing the position the parts at the end ot'recoil and beginning ctreturn to hat 4-6 tery. Fig. 31s a transverse section on the line A BotFig. 1.

The recoihbrake comprises the cylin er 9, the piston m, and its hollowstem 7i, attached The internal diameter of the housing of thecontrolling-ram I) (2". (2., the part 0% the ho'ilow plunger inwhich theram works) is greater than the maximum diameter of the tapering ram. Asa result an annular orifice c is formed, which permits the liquid of thebrake under pressure to iio'w readily into the housing of the ramwhile'the iatter is ieaving it.

, When the gun recoils, carrying with it the hollow stem or pistdnmodIt, the liquid containedzin the annular space between the stem 71 andthecylinder g is compressed by the piston me This liquid escapes'by thepassages. o in the piston, which conduct it to a central orifice c,whose function is variable and is determined by the retarding piunger b.The liquid reaching thecentral orifice 0 under presto the gun, and thecontrolling and retarding plunger 6. The whole is filled with liquid.

sure begins to fill thespace a left in the hol- 1 low piston-rod by theremoval of the retardingplunger 6 and finally passes the central orificein advance of the piston into a space where the pressure is lower, Inpassing into chamber a the liquid under pressure lifts the cap or valved, located at the end. of the retardingplunger At the end of therecoilthe valve d'closes' through the action of the spring 6,

thereby confining the liquid in: the chamber a -that.is, "in the.interior ofthe rod of the piston m. The recoil having terminated, arecubattery and compresses the liquid in the chamber a,' from which itcannot escape except by thelongitudi'nal grooves f, of variable section,

per ator then acts on the gun to return it to located in the walls ofthe hrake-pistonro 7a These grooves permit the retern thbattery plungercarrying at its free end a valve adaptbe accelerated 'or retarded orregulated at 5 will,

"hat I claim is l 1. In control apparatus for'recoiling guns, 1 thecombination of a brake-cylinder, a piston 1 therein provided with ahollow piston-rod communicating with said cylinder, a retarding;tapering plunger located within'the hollow i piston-rod and passingthrough the piston. said ed to open on recoil and close on return to;battery, said hollow piston-rod havingint-ernal K grooves of varyingdepth constituting com- 3 municat-ing channels between the hollowpiston-rod and brake-cylinder whereby the energy of recoil is controlledand the shock of g the return to battery is deadened.

2. In control apparatus for recoiling guns, i the combination of abrake-cylinder, a piston therein provided with a hollow piston-rodcommunicating with said cylinder, a retard- L ing tapering plungerlocated within said hol low piston-rod and passing through thepi-ston,aspring valve-cap located on the free end of the plunger adaptedto open on recoil and to close on return to battery, said hollowpiston-rod having internal longitudii'lal grooves of varying depthconstituting channels between the hollow piston-rod and brake-cylinder,whereby the energy of recoil is controlled and the shock of return tobattery is dead- GllQLl.

3. in control apparatus for guns, the combination of a brake-cylinder, apiston therein provided with a hollow piston-rod communieating with saidcylinder, a tapering plunger fast at one end to said brake-cylinder andextending loosely tl'lrough the piston into said hollow piston-rod, saidplunger being provided 1, at its free end with a shoulder and anextension forming a valve-stem, a perforated valvecap guided by saidstem and fitting the hollow piston-rod, a spring within said capnormally holding said cap against said shoulder thereby closing the endopenings in said cap, the said piston-rod having internal longitudinaltaperinggrooves constituting communicating channels between the hollowpiston-rod and brakecylinder, whereby said tapering plunger and openingthrough the piston oppose an increasing resistance to recoil and saidtapering.

grooves and valve oppose a similar resistance to counter-recoil.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

CHARLES PROSPER lll'Ul-JNE dCllNlilDlllL \Yitnesses:

JEAN (,iAnic'r,

Er :vnsr VALOT.

